12221020100111 has 8 divisors (see below), whose sum is σ = 12343028978448. Its totient is φ = 12099031000000.

The previous prime is 12221020100099. The next prime is 12221020100137. The reversal of 12221020100111 is 11100102012221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221020100111 - 2¹⁸ = 12221019837967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221020100171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3701030 + ... + 6175731.

It is an arithmetic number, because the mean of its divisors is an integer number (1542878622306).

Almost surely, 2^{12221020100111} is an apocalyptic number.

12221020100111 is a deficient number, since it is larger than the sum of its proper divisors (122008878337).

12221020100111 is a wasteful number, since it uses less digits than its factorization.

12221020100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9889113.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221020100111 its reverse (11100102012221), we get a palindrome (23321122112332).

The spelling of 12221020100111 in words is "twelve trillion, two hundred twenty-one billion, twenty million, one hundred thousand, one hundred eleven".